Ever since my Kindle broke, I've been reading on my iTouch for the most part. I've been using both the Kindle iPhone app and the Barnes and Noble app and while they are different (Kindle notes, BN notes) , they both have a few quirks and I can't say one is amazingly better than the other. I do like the fact that Barnes and Noble allows me to read on the PC as well as the iTouch, and I have used my PC a couple times when I've had the laptop and not my iTouch.
I've been debating what to do about my reading habits. I have made a few trips to the library in the last month to get books for the kids (and encourage them to read), and gotten myself a few books as well. I like reading paper, but it's inconvenient for me. I find myself without that paper book as I move through a busy life. So I definitely like the idea of ebooks myself. But am I ready for a dedicated reader?
I do think that the Kindle works amazingly better than an LCD screen. It is easier on the eyes, and it lasts much longer. Right now I need to be sure I have power handy for the iTouch or I'll drain it within a day. That can be a problem on long flights, and if I go back to the UK, I'll need a power solution. The Sony reader (saw one in Wal-Mart), works on the same principle, but they have less selection than either B&N or Amazon. I'm sure that might change at some point, but what I'd like to do is see these items decoupled. I think Amazon is making a mistake by not supporting other devices, and the same with Barnes and Noble, though B&N did say they'll support the ePub format.
I've purchased books from both amazon and B&N, and right now the platform is more important to me. Being able to buy anytime, anyplace, is a killer feature. So much so that I'm considering actually moving to an iPhone from my Google G1 just so I can converge onto one device. If I can get books from multiple sources on the iPhone, listen to music, and have a phone, that's winning me over. Sure my Google phone can play music, but it's nowhere near as convenient as iTunes. It has AmazonMP3, but I love having all my music easily found on iTunes.
Overall, however, the big thing I've noticed is that the content is what matters. When I read a story I like, I get lost in the story, ignoring the medium. Whether it's an iPhone, Kindle, or paper book, the story draws me in and I enjoy it.